Ganglia is a scalable distributed monitoring system for high-performance computing systems such as clusters and Grids. It is based on a hierarchical design targeted at federations of clusters. Supports clusters up to 2000 nodes in size.

SDCC is a free open source, retargettable, optimizing ANSI C
compiler suite that supports a growing list of processors including the
Intel 8051, Maxim 80DS390, Zilog Z80, Z180, Rabbit 2000, gbz80,
Motorola 68HC08, S08 and STMicroelectronics STM8 targets. There also is incomplete support for the Microchip PIC16 and PIC18.

Soprano (formerly known as QRDF) is a library which provides a highly usable object-oriented C++/Qt4 framework for RDF data. It uses different RDF storage solutions as backends through a simple plugin system. Soprano is targetted at desktop applications

Comix is a user-friendly, customizable image viewer. It is specifically designed to handle comic books, but also serves as a generic viewer. It reads images in ZIP, RAR or tar archives (also gzip or bzip2 compressed) as well as plain image files.

MSLB is a crossplatform Simple Logbook program / application to write work logs or even a diary. MSLB can also use a bunch of presets that you can add with a simple doubleclick :) Logs get saved in a simple folder system. And its all portable.

FileRunner is a two pane file manager for Unix and Unix like systems. It is simple and efficient and has a built-in FTP and SFTP client. It also does a reasonable (and improving) job on Windows systems. New and improved from a FileRunner of long ago.